rule_exists()
This is liable to change in the future.
Returns True if there is a previously defined rule with provided name, or False if the rule with such name does not exist.Arguments
name(defaults toNone) The name of the rule.
This is liable to change in the future.
Returns True if there is a previously defined rule with provided name, or False if the rule with such name does not exist.name (defaults to None) The name of the rule.